90260491 has 2 divisors, whose sum is σ = 90260492. Its totient is φ = 90260490.

The previous prime is 90260479. The next prime is 90260519. The reversal of 90260491 is 19406209.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90260491 - 2⁷ = 90260363 is a prime.

It is a super-2 number, since 2×90260491² = 16293912471122162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (90260411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45130245 + 45130246.

It is an arithmetic number, because the mean of its divisors is an integer number (45130246).

Almost surely, 2^90260491 is an apocalyptic number.

90260491 is a deficient number, since it is larger than the sum of its proper divisors (1).

90260491 is an equidigital number, since it uses as much as digits as its factorization.

90260491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 90260491 is about 9500.5521418494. The cubic root of 90260491 is about 448.5724158256.

The spelling of 90260491 in words is "ninety million, two hundred sixty thousand, four hundred ninety-one".